Table of Contents
Foreword
1Scope
2Normativereferences
3Referenceatmosphericconditions
4Attenuationcoefficientsowingtoatmosphericabsorption
forpure-tonesounds
5Calculationprocedureforpure-toneattenuationcoefficients
6Accuracyofcalculatedpure-toneattenuationcoefficientsfor
variousrangesofthevariables
7Calculationoftheattenuationbyatmosphericabsorptionfor
widebandsoundsanalysedbyfractional-octave-bandfilters
8Applicationtoroomacoustics
Tables
Annexes
A-Physicalmechanismforatmosphericabsorption
B-Conversionofhumiditydatatomolarconcentrationofwater
vapour
C-Effectofinhomogeneous,realatmospheres
D-Generalspectrum-integrationmethodforcalculatingthe
attenuationbyatmosphericabsorptionofwidebandsounds
analysedbyfractional-octave-bandfilters
E-Approximatemethodforcalculatingtheattenuationby
atmosphericabsorptionofwidebandsoundsanalysedby
fractional-octave-bandfilters
Tables Abstract
Specifies an analytical method for calculating the attenuation of sound as a result of atmospheric absorption for a variety of meteorological conditions when the sound from any moderate-amplitude source propagates through the atmosphere.
